Pruning involves removal of dead or diseased wood so as to create a good tree structure that permits good light penetration, resistance to wind, less sensitivity to pests and diseases, and easy harvest operations
About 25-30% of moderate pruning is done on commercially grown mangos to reduce the canopy height and width of large mango trees. Ideally, the tree will be shaped to have three and not more than four main trunks, have ample interior canopy space and is 12-15 feet tall. In the first year, when the trees have grown to over 1m above the ground, trim at 0.90-1.0m from ground to encourage side branches. In year two, leave four to five well spread branches to be future scaffolds on which the bearing surface will develop
A young mango tree will grow more within its first 2-3 years, so you should trim it well to keep a mango tree small. Once a tree is over 1.0m tall, cut back its main shoot to 0.6-0.7m with pruning shears. After its horizontal branches reach over 1.0m, cut them back to a similar length. You should prune a mango tree regularly to keep it at a manageable size and encourage fruit